The Stella Micro Module from Stella Robot is the core actuation module of the GaiaHand open-source dexterous hand project. Each finger is constructed by connecting several modules in series, enabling independent actuation per joint. The module features high-performance BLDC motors with gear reducers, hot-swappable design for easy maintenance, and is sold in sets of 6 or more. Fifteen modules are required to replicate the full GaiaHand project.